Premium
The role of deformation in the large‐scale dispersion of clusters
Author(s) -
Djuric D.
Publication year - 1966
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49709239206
Subject(s) - dispersion (optics) , barotropic fluid , turbulence , deformation (meteorology) , mechanics , scale (ratio) , diffusion , kinematics , turbulent diffusion , cluster (spacecraft) , flow (mathematics) , geology , physics , classical mechanics , meteorology , thermodynamics , optics , quantum mechanics , computer science , programming language
A study is made of the deformation of fluid bodies in horizontal flow in the absence of small‐scale turbulent diffusion. On the basis of a kinematic model, formulae for the increase of the separation of pairs of particles and of the dispersion of particles from the centre of gravity of each cluster of particles are given. The results are compared with statistical data from the dispersion of air trajectories in a barotropic model corresponding to the development of the flow in the Northern Hemisphere over a period of 8 days. The dispersion of clusters by deformation is used to demonstrate how the diffusion coefficient increases with the scale of motion.